What animal group is a quiver?

A quiver is a group of porcupines. Porcupines are large rodents with sharp quills. They are found in North America, South America, Europe, Africa, and Asia. Porcupines are solitary animals that live in burrows or trees. They are herbivores that eat leaves, twigs, bark, and fruit. Porcupines are known for their ability to defend themselves by shooting their quills at predators.